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What will be the theoritical value of sp...

What will be the theoritical value of spin only magnetic moment when `Fe(SCN)_(3)` reacts with a solution containing F ion to yield a complex

A

2.83 BM

B

3.87 BM

C

5.92 BM

D

1.73 BM

Text Solution

Verified by Experts

The correct Answer is:
C
Both `SCN^(-)` and `F^(-)` are weak field ligands. So, Fe(III) will have `t_(2g)^(3)e_(g)^(2)` configuration, with 5 unpaired electrons.
`mu_(s)=sqrt(n(n+2))=sqrt(5(5+2))=5.92 BM`.
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